Simplified production of spatial inverse filters

A logarithmic nonlinearity in the transmittance-versus-exposure curve of a photographic material can greatly simplify holographic fabrication of inverse filters. We present here two filter-production methods utilizing this non-linearity, which produce relatively high-dynamic-range inverse filters. C...

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Bibliographic Details
Published inOptics letters Vol. 3; no. 6; p. 247
Main Authors Dallas, W J, Linde, R, Weiss, H
Format Journal Article
LanguageEnglish
Published United States 01.12.1978
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Summary:A logarithmic nonlinearity in the transmittance-versus-exposure curve of a photographic material can greatly simplify holographic fabrication of inverse filters. We present here two filter-production methods utilizing this non-linearity, which produce relatively high-dynamic-range inverse filters. Confirming computer simulations and coherent-optical experiments are presented.
ISSN:0146-9592
DOI:10.1364/OL.3.000247